People seem to refer to this era of keyboard as the chiclet keyboard. MBPs at the time used a very similar design before the disastrous butterfly switch where user experience was a blood sacrifice at the Johnny Ive's Altar of Thinness.

I too like these keyboards, particularly the wired ones (which have a numpad), so much so that I started to hoard them when Apple stopped making them. I think I have 5 of them. 1 stopped working and it gets salvaged for keycaps now.